Vol. 12, Issue 12 (2023)

Author(s):
MB Zala and TM Bharpoda

Abstract:
The field experiments were conducted at Horticulture farm, B. A. College of Agriculture, Anand Agricultural University, Anand during 2014 (March-April & September-October) and 2015 (March-April & September-October) to study the resistance/susceptibility of mango varieties against gall midge, Procontarinia matteiana Kieffer & Cecconi. During the period of investigations, 10 mango cultivars (Langra, Kesar, Rajapuri, Alphonso, Amrapali, Mallika, Totapuri, Dasheri, Sonpari and Vanraj) were evaluated based on the leaf damage (galling) index (0-5). Among all the mango varieties evaluated, Totapuri, Rajapuri, Vanraj, Langra as well as Amrapali were registered in resistant (R) category as the incidence of P. matteiana ranged between 0.60 to 1.54 leaf damage index. Dasheri as well as Alphonso exhibited the incidence in the range of 2.29 to 2.53 leaf damage index and were grouped as moderately susceptible (MS) cultivars during summer seasons of two consecutive years (2014 and 2015). Mango varieties Totapuri, Rajapuri, Vanraj, Langra as well as Mallika recorded the incidence in the range of 0.60 to 1.38 leaf damage index and grouped as resistant varieties and Dasheri as well as Alphanso recorded greater than 2.06 leaf damage index but less than 2.62 leaf damage index and categorized as moderately susceptible varieties during kharif seasons of two consecutive years (2014 and 2015). Morphological characters viz., thickness (mm), length (cm), width (cm) and area (cm²) of compound leaf of different mango varieties has shown no any significant role on the activity of P. matteiana.